Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
70 + 10 = ______
3 × 10 = ______
56 + 10 = ______
1 × 10 = ______
37 + 10 = ______
30 + 10 = ______
97 − 10 = ______
68 + 10 = ______
39 − 10 = ______
56 − 10 = ______
70 − 10 = ______
90 − 10 = ______
31 + 20 = ______
46 − 10 = ______
56 + 20 = ______
60 + 20 = ______
60 − 10 = ______
62 + 10 = ______
26 + 20 = ______
58 + 20 = ______
